CN213821355U - Anti-fatigue lamp box visual chart - Google Patents
Anti-fatigue lamp box visual chart Download PDFInfo
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- CN213821355U CN213821355U CN202022400708.XU CN202022400708U CN213821355U CN 213821355 U CN213821355 U CN 213821355U CN 202022400708 U CN202022400708 U CN 202022400708U CN 213821355 U CN213821355 U CN 213821355U
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- lamp house
- acuity chart
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Abstract
The utility model discloses an anti-fatigue light box visual acuity chart, which belongs to the technical field of visual acuity chart light boxes, and the technical proposal key points comprise a light box visual acuity chart body, a full spectrum illuminating lamp is arranged in the light box visual acuity chart body, a mounting frame is arranged above the light box visual acuity chart body, two evenly distributed electric control telescopic rods are fixedly connected with the lower end surface of the mounting frame, a receiver is fixedly connected with the lower end surface of a controller, an electronic display meter is embedded in the middle of the front end surface of the mounting frame, a distance sensor is fixedly connected with the left side of the lower end surface of the light box visual acuity chart body, the full spectrum illuminating lamp has the advantages of low color temperature, high color rendering index, small harm of blue light to eyes, no glare of light frequency flash, difficult fatigue vision, starting of the electric control telescopic rod, convenient adjustment of the light box visual acuity chart body to a proper height, the phenomenon that the lamp box visual chart body is too high and too low during detection is solved.
Description
Technical Field
The utility model relates to a visual chart lamp house technical field, in particular to prevent tired lamp house visual chart.
Background
The visual acuity chart is a chart for measuring visual acuity, and the domestic visual acuity charts comprise the following components: the visual chart is made according to the visual angle principle, and when in use, the visual chart lamp box is inserted or placed at a reasonable position, and is at the same level with two eyes, so that the visual chart does not become too high or too low.
The LED and the traditional lamp tube are generally adopted in the existing lamp box visual chart, the color temperature of the LED and the traditional lamp tube is too high, the color rendering index is low, the blue light harms eyes, the light frequency flash has glare, the asthenopia is easily caused, meanwhile, the height of the lamp box visual chart is not convenient to adjust, and during measurement, the phenomenon that the eyes and the lamp box visual chart are too high and too low on the same level can not be ensured.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a new solution is proposed to above problem.
The utility model is realized in such a way, a lamp box visual acuity chart for preventing fatigue, which comprises a lamp box visual acuity chart body, wherein a full-spectrum illuminating lamp is arranged inside the lamp box visual acuity chart body, a mounting frame is arranged above the lamp box visual acuity chart body, the lower end surface of the mounting frame is fixedly connected with two evenly distributed electric control telescopic rods, the output ends of the two electric control telescopic rods are fixedly connected with the upper end surface of the lamp box visual acuity chart body, the middle parts of the two electric control telescopic rods are provided with a controller, the upper end surface of the controller is fixedly connected with the lower end surface of the mounting frame, the lower end surface of the controller is fixedly connected with a receiver, an electronic display chart is embedded in the middle part of the front end surface of the mounting frame, the left side of the lower end surface of the lamp box visual acuity chart body is fixedly connected with a distance sensor, and the distance sensor is electrically connected with the electronic display chart, two automatically controlled telescopic link, electronic display table, controller and full gloss register for easy reference light all are connected with the power through the wire, the right side of lamp house visual acuity chart body front end face below is provided with lamp house shift knob, two automatically controlled telescopic link, electronic display table and lamp house shift knob all with controller electric connection.
In order to improve the stability ability that lamp house visual acuity chart body removed, as the utility model discloses a prevent that tired lamp house visual acuity chart is preferred, two one side that automatically controlled telescopic link carried on the back mutually all is provided with link, two spacing spout, two have all been seted up to relative one side of link the up end of link and the lower terminal surface fixed connection of mounting bracket, the equal fixedly connected with in the left and right sides of lamp house visual acuity chart body and spacing spout assorted limit slide.
In order to make lamp house visual acuity chart body reach the fixed effect of easy to assemble, conduct the utility model discloses a prevent that tired lamp house visual acuity chart is preferred, the shape of mounting bracket is "L" form, two evenly distributed's main mounting hole has been seted up to the preceding terminal surface of mounting bracket.
In order to improve the intensity of lamp house visual acuity chart body installation, as the utility model discloses a prevent that tired lamp house visual acuity chart is preferred, two the equal fixedly connected with in middle part of link rear end face strengthens the fixed block, strengthen the preceding terminal surface of fixed block and seted up supplementary mounting hole
Compared with the prior art, the beneficial effects of the utility model are that:
1. the anti-fatigue light box visual acuity chart has the advantages that the full-spectrum illuminating lamp is arranged inside the light box visual acuity chart body, the full-spectrum illuminating lamp replaces a common lamp tube and an LED, the full-spectrum illuminating lamp has the advantages of low color temperature, high color rendering index and small harm of blue light to eyes, glare does not exist in light frequency flashing, visual fatigue is not easily caused, (the color temperature of the full-spectrum illuminating lamp is 5000K, the color rendering index is greater than or equal to 98; the color temperature of the common lamp tube is 7500K, the color rendering index is 73; the color temperature of the LED is 7200, the color rendering index is 67), further, the visual fatigue is reduced, the lower end face of the mounting frame is fixedly connected with two uniformly distributed electric control telescopic rods, an operator can start the electric control telescopic rods through a remote controller, the output end of the electric control telescopic rods is fixedly connected with the light box visual acuity chart body, a distance sensor on the lower end face of the light box visual acuity chart body is connected with an electronic display chart, the height of the light box visual acuity chart body is displayed above the electronic display chart, and according to the height of a detector, the light box visual acuity chart body is conveniently adjusted to a proper height, so that the light box visual acuity chart body and two eyes of the detector are at the same level, the problem that the light box visual acuity chart body is too high and too low during detection is solved, and meanwhile, the light box visual acuity chart body achieves the effect of convenient adjustment.
To sum up, this kind of prevent tired lamp house visual acuity chart has the effect that has reduced the tired degree of eyesight, and the high of lamp house visual acuity chart is convenient for adjust simultaneously, solves the lamp house visual acuity chart and when examining test, appears too high and crosses low phenomenon excessively.
Drawings
FIG. 1 is an overall structure diagram of a fatigue-proof light box visual chart of the present invention;
fig. 2 is a cross-sectional view of the connection frame of the present invention.
In the figure, 1, a light box visual chart body; 101. a limiting slide block; 102. a lamp box switch button; 103. a distance sensor; 2. a mounting frame; 201. a main mounting hole; 202. a connecting frame; 203. a limiting chute; 204. reinforcing the fixed block; 205. an auxiliary mounting hole; 206. an electronic display meter; 3. a controller; 301. a receiver; 4. an electric control telescopic rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a prevent tired lamp house visual acuity chart, including lamp house visual acuity chart body 1, the internally mounted of lamp house visual acuity chart body 1 has full gloss register light, the top of lamp house visual acuity chart body 1 is provided with mounting bracket 2, the lower terminal surface fixedly connected with two evenly distributed's of mounting bracket 2 automatically controlled telescopic link 4, the output of two automatically controlled telescopic links 4 and the up end fixed connection of lamp house visual acuity chart body 1, the middle part of two automatically controlled telescopic links 4 is provided with controller 3, the up end of controller 3 and the lower terminal surface fixed connection of mounting bracket 2, the lower terminal surface fixedly connected with receiver 301 of controller 3, the middle part embedding of mounting bracket 2 front end surface is provided with electronic display table 206, the left side fixedly connected with distance sensor 103 of lamp house visual acuity chart body 1 lower terminal surface, distance sensor 103 and electronic display table 206 electric connection, two automatically controlled 4, electronic display table 206, Controller 3 and full-spectrum light all are connected with the power through the wire, and the right side of lamp house visual chart body 1 preceding terminal surface below is provided with lamp house shift knob 102, and two automatically controlled telescopic links 4, electronic display table 206 and lamp house shift knob 102 all with controller 3 electric connection.
In this embodiment: model of controller 3: mam-200, model of distance sensor 103: TOF10102, through installing the full spectrum lighting lamp in the inside of the body of the light box visual acuity chart 1, the full spectrum lighting lamp has the color temperature too low, the color rendering index is high, and the blue light is small to the eye hazard, the flashing of light frequency has no glare, difficult to cause the visual fatigue, (the color temperature of the full spectrum lighting lamp: 5000K, the color rendering index is greater than or equal to 98; the color temperature of the ordinary light tube: 7500K, the color rendering index: 73; the color temperature of the LED: 7200, the color rendering index: 67), and then reduce the visual fatigue, fixedly connect with two electric control telescopic links 4 evenly distributed on the bottom end of the mounting bracket 2, the operator can start the electric control telescopic link 4 through the remote controller, the output end of the electric control telescopic link 4 is fixedly connected with body of the light box visual acuity chart 1, the distance sensor 103 is electrically connected with electronic display table 206, the height of the body of the light box visual acuity chart 1 is displayed above the electronic display table 206, according to the height of the inspector, the height suitable for the lamp box visual acuity chart body 1 is conveniently adjusted, so that the lamp box visual acuity chart body 1 and two eyes of the inspector are on the same level, the phenomenon that the lamp box visual acuity chart body 1 is too high and too low when detecting is solved, and meanwhile, the lamp box visual acuity chart body 1 achieves the effect of convenient adjustment.
As a technical optimization scheme, two electric control telescopic rod 4 one side mutually on the back of the body all is provided with link 202, and spacing spout 203 has all been seted up to relative one side of two link 202, the up end of two link 202 and mounting bracket 2's lower terminal surface fixed connection, the equal fixedly connected with in the left and right sides of lamp house visual chart body 1 and spacing spout 203 assorted limit slide 101.
In this embodiment: through the equal fixedly connected with in the left and right sides of lamp house visual chart body 1 and spacing spout 203 assorted limit slide 101, start automatically controlled telescopic link 4, automatically controlled telescopic link 4 synchronous drive lamp house visual chart body 1 removes, and when lamp house visual chart body 1 removed, both sides received the injecing of spacing spout 203, further improved the stability ability that lamp house visual chart body 1 removed.
As a technical optimization scheme of the utility model, mounting bracket 2's shape is "L" form, and two evenly distributed's main mounting hole 201 are seted up to mounting bracket 2's preceding terminal surface.
In this embodiment: two evenly distributed's main mounting hole 201 is seted up at the preceding terminal surface of mounting bracket 2, and then is making things convenient for fixed mounting bracket 2 through main mounting hole 201, makes lamp house visual chart body 1 reach the fixed effect of easy to assemble, is convenient for detect.
As a technical optimization scheme of the utility model, the middle part of two link 202 rear end faces all fixedly connected with strengthens fixed block 204, strengthens the preceding terminal surface of fixed block 204 and has seted up supplementary mounting hole 205.
In this embodiment: fixed block 204 is strengthened through the equal fixedly connected with in the middle part at two link 202 rear end faces, and then conveniently sets up supplementary mounting hole 205 in the place ahead of strengthening fixed block 204, is convenient for with screw fixed link 202, further improves the intensity of lamp house visual chart body 1 installation.
The working principle is as follows: firstly, a full-spectrum illuminating lamp is arranged in a light box visual acuity chart body 1, the full-spectrum illuminating lamp replaces a common lamp tube and an LED, the full-spectrum illuminating lamp has the advantages of low color temperature, high color rendering index, small harm of blue light to eyes, no glare of light frequency flash and difficulty in causing visual fatigue, the color temperature of the full-spectrum illuminating lamp is 5000K, the color rendering index is greater than or equal to 98, the color temperature of the common lamp tube is 7500K, the color rendering index is 73, the color temperature of the LED is 7200, the color rendering index is 67), further, the visual fatigue is reduced, two uniformly distributed electric control telescopic rods 4 are fixedly connected to the lower end face of an installation frame 2, an operator can start the electric control telescopic rods 4 through a remote controller, the output end of the electric control telescopic rods 4 is fixedly connected with the light box visual acuity chart body 1, a distance sensor 103 on the lower end face of the light box visual acuity chart body 1 is connected with an electronic display table 206, the height of the lamp box visual acuity chart body 1 is displayed above the electronic display chart 206, and according to the height of a detector, the lamp box visual acuity chart body 1 is conveniently adjusted to a proper height, so that the lamp box visual acuity chart body 1 and two eyes of the detector are at the same level, the phenomenon that the lamp box visual acuity chart body 1 is too high and too low when detecting is solved, and meanwhile, the lamp box visual acuity chart body 1 achieves the effect of convenient adjustment.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. The utility model provides a prevent tired lamp house visual chart, includes lamp house visual chart body (1), its characterized in that: the utility model discloses a full gloss register for easy reference light, including lamp house visual chart body (1), the internally mounted of lamp house visual chart body (1) has full gloss register for easy reference light, the top of lamp house visual chart body (1) is provided with mounting bracket (2), the lower terminal surface fixedly connected with two evenly distributed's of mounting bracket (2) automatically controlled telescopic link (4), two the output of automatically controlled telescopic link (4) and the up end fixed connection of lamp house visual chart body (1), two the middle part of automatically controlled telescopic link (4) is provided with controller (3), the up end of controller (3) and the lower terminal surface fixed connection of mounting bracket (2), the lower terminal surface fixedly connected with receiver (301) of controller (3), the middle part embedding of mounting bracket (2) front end surface is provided with electronic display table (206), the left side fixedly connected with distance sensor (103) of terminal surface under lamp house visual chart body (1), distance sensor (103) and electronic display table (206) electric connection, two automatically controlled telescopic link (4), electronic display table (206), controller (3) and full gloss register for easy reference light all are connected with the power through the wire, the right side of lamp house visual chart body (1) preceding terminal surface below is provided with lamp house shift knob (102), two automatically controlled telescopic link (4), electronic display table (206) and lamp house shift knob (102) all with controller (3) electric connection.
2. The anti-fatigue light box eye chart of claim 1, wherein: two one side that automatically controlled telescopic link (4) carried on the back mutually all is provided with link (202), two spacing spout (203), two have all been seted up to the relative one side of link (202) the up end of link (202) and the lower terminal surface fixed connection of mounting bracket (2), the equal fixedly connected with in the left and right sides of lamp house visual chart body (1) and spacing spout (203) assorted spacing slider (101).
3. The anti-fatigue light box eye chart of claim 1, wherein: the shape of mounting bracket (2) is "L" form, two evenly distributed's main mounting hole (201) have been seted up to the preceding terminal surface of mounting bracket (2).
4. The anti-fatigue light box eye chart of claim 2, wherein: the middle parts of the rear end faces of the two connecting frames (202) are fixedly connected with reinforcing fixing blocks (204), and auxiliary mounting holes (205) are formed in the front end faces of the reinforcing fixing blocks (204).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022400708.XU CN213821355U (en) | 2020-10-26 | 2020-10-26 | Anti-fatigue lamp box visual chart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022400708.XU CN213821355U (en) | 2020-10-26 | 2020-10-26 | Anti-fatigue lamp box visual chart |
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| Publication Number | Publication Date |
|---|---|
| CN213821355U true CN213821355U (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022400708.XU Active CN213821355U (en) | 2020-10-26 | 2020-10-26 | Anti-fatigue lamp box visual chart |
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| CN (1) | CN213821355U (en) |
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- 2020-10-26 CN CN202022400708.XU patent/CN213821355U/en active Active
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